Spring Boot uses JDBCTemplate to operate MySQL database (1) Basic articles_jdbctemplate mysql_Memory’s Blog

class=”markdown_views prism-atom-one-dark”> Know Java’s database connection template JDBCTemplate Get to know JDBCTemplate Learn about JDBC JDBC (Java Database Connectivity), which is Java’s specification for connecting to databases, is the Java API for executing database SQL statements. JDBC can connect to various databases because it provides a unified access interface, which is also in line with the pattern of Java program interface design. JDBC needs to connect to the database every time, and then issue SQL statements, pass values, and close the database. Such a process operation, once a certain step is forgotten, many problems will arise, so JDBCTemplate was designed. Learn about JDBCTemplate JDBCTemplate = JDBC + Template is a combination of JDBC. It is more convenient for program implementation and completes all JDBC underlying operations for us. Therefore, for the operation of the database, there is no need to connect, open, and close each time. JDBC and JDBCTemplate are like warehouse managers, responsible for accessing items from the warehouse (database). The latter uses “electric door automatic control” JDBCTemplate is more cumbersome to implement than ORM, so most development uses ORM (JPA and MyBatis ). But JDBCTemplate still has a market because of the low learning cost. Example: Use JDBCTemplate…